diff options
Diffstat (limited to 'engines/sci/engine/vm.cpp')
| -rw-r--r-- | engines/sci/engine/vm.cpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/engines/sci/engine/vm.cpp b/engines/sci/engine/vm.cpp index 841d4ede64..9ab95c41bb 100644 --- a/engines/sci/engine/vm.cpp +++ b/engines/sci/engine/vm.cpp @@ -49,6 +49,86 @@ const reg_t SIGNAL_REG = {0, SIGNAL_OFFSET}; #define SCI_XS_CALLEE_LOCALS ((SegmentId)-1) +#define END Script_None + +opcode_format g_opcode_formats[128][4] = { + /*00*/ + {Script_None}, {Script_None}, {Script_None}, {Script_None}, + /*04*/ + {Script_None}, {Script_None}, {Script_None}, {Script_None}, + /*08*/ + {Script_None}, {Script_None}, {Script_None}, {Script_None}, + /*0C*/ + {Script_None}, {Script_None}, {Script_None}, {Script_None}, + /*10*/ + {Script_None}, {Script_None}, {Script_None}, {Script_None}, + /*14*/ + {Script_None}, {Script_None}, {Script_None}, {Script_SRelative, END}, + /*18*/ + {Script_SRelative, END}, {Script_SRelative, END}, {Script_SVariable, END}, {Script_None}, + /*1C*/ + {Script_SVariable, END}, {Script_None}, {Script_None}, {Script_Variable, END}, + /*20*/ + {Script_SRelative, Script_Byte, END}, {Script_Variable, Script_Byte, END}, {Script_Variable, Script_Byte, END}, {Script_Variable, Script_SVariable, Script_Byte, END}, + /*24 (24=ret)*/ + {Script_End}, {Script_Byte, END}, {Script_Invalid}, {Script_Invalid}, + /*28*/ + {Script_Variable, END}, {Script_Invalid}, {Script_Byte, END}, {Script_Variable, Script_Byte, END}, + /*2C*/ + {Script_SVariable, END}, {Script_SVariable, Script_Variable, END}, {Script_None}, {Script_Invalid}, + /*30*/ + {Script_None}, {Script_Property, END}, {Script_Property, END}, {Script_Property, END}, + /*34*/ + {Script_Property, END}, {Script_Property, END}, {Script_Property, END}, {Script_Property, END}, + /*38*/ + {Script_Property, END}, {Script_SRelative, END}, {Script_SRelative, END}, {Script_None}, + /*3C*/ + {Script_None}, {Script_None}, {Script_None}, {Script_Word}, + /*40-4F*/ + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + /*50-5F*/ + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + /*60-6F*/ + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + /*70-7F*/ + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END}, + {Script_Global, END}, {Script_Local, END}, {Script_Temp, END}, {Script_Param, END} +}; +#undef END + +// TODO: script_adjust_opcode_formats should probably be part of the +// constructor (?) of a VirtualMachine or a ScriptManager class. +void script_adjust_opcode_formats() { + if (g_sci->_features->detectLofsType() != SCI_VERSION_0_EARLY) { + g_opcode_formats[op_lofsa][0] = Script_Offset; + g_opcode_formats[op_lofss][0] = Script_Offset; + } + +#ifdef ENABLE_SCI32 + // In SCI32, some arguments are now words instead of bytes + if (getSciVersion() >= SCI_VERSION_2) { + g_opcode_formats[op_calle][2] = Script_Word; + g_opcode_formats[op_callk][1] = Script_Word; + g_opcode_formats[op_super][1] = Script_Word; + g_opcode_formats[op_send][0] = Script_Word; + g_opcode_formats[op_self][0] = Script_Word; + g_opcode_formats[op_call][1] = Script_Word; + g_opcode_formats[op_callb][1] = Script_Word; + } +#endif +} + /** * Adds an entry to the top of the execution stack. * |